Our work shows that an exploration of the IGM properties from hundreds of self-consistently evolved models for the astrophysical processes
that impact the gas in the medium is now possible by exploiting modern computational techniques on the world's largest supercomputers.
Using our efficient GPU-based code Cholla with Summit,
we are able to run hundreds of cosmological simulations in just a few days using a small fraction of the system.
We anticipate that when combined
with the exquisite picture of the Lyman-\(\alpha \)  forest that experiments like [1]} will provide,
this capability will revolutionize future studies of the properties of the
IGM.
We can leverage next-generation exascale systems and simulate large volumes (\(L\sim 50h{-1}\) Mpc) at high resolution (\(N=2048^3\) )
for thousands of models describing the various the astrophysical processes that affect the IGM with
a range of cosmological parameters, and study
different models for the nature of dark matter and the mass hierarchy of neutrinos
based on their impact on the small-scale power spectrum of the Lyman-\(\alpha \)  forest.
